Zambales's 1st congressional district is one of the two congressional districts of the Philippines in the province of Zambales. It has been represented in the House of Representatives since 1987. The district consists of the city of Olongapo and adjacent municipalities in the southernmost part of Zambales, namely Castillejos, San Marcelino and Subic. It is currently represented in the 20th Congress by Jefferson F. Khonghun of the Sulong Zambales Party (SZP) and Lakas–CMD (Lakas).
Representation history # Image Member Term of office Congress Party Electoral history ConstituentLGUsStartEndZambales's 1st district for the House of Representatives of the Philippines District created February 2, 1987 from Zambales's at-large district. 1 Katherine H. Gordon June 30, 1987 June 30, 1995 8th Nacionalista Elected in 1987. 1987–presentCastillejos, Olongapo, San Marcelino, Subic 9th NPC (Nacionalista) Re-elected in 1992. 2 James J. Gordon Jr. June 30, 1995 June 30, 2004 10th Nacionalista Elected in 1995. 11th Lakas Re-elected in 1998. 12th Re-elected in 2001. 3 Mitos Magsaysay June 30, 2004 June 30, 2013 13th Independent Elected in 2004. 14th Lakas Re-elected in 2007. 15th UNA Re-elected in 2010. 4 Jeffrey D. Khonghun June 30, 2013 June 30, 2022 16th NPC Elected in 2013. 17th Nacionalista Re-elected in 2016. 18th Re-elected in 2019. 5 Jay Khonghun June 30, 2022 Incumbent 19th Lakas(SZP) Elected in 2022. 20th Re-elected in 2025.
Election results 2025
2022
2019
2016
2013
2010
See also Legislative districts of Zambales
References